Wellhead pipeline winding and unwinding auxiliary device

Abstract

The utility model provides a wellhead pipeline take-up and pay-off auxiliary device which comprises a guide wheel set and supporting rods fixed to the two ends of the guide wheel set, the guide wheel set comprises a guide wheel fixing rod, and the periphery of the guide wheel fixing rod is connected with a first guide wheel and a second guide wheel in a sleeved mode. The two ends of the supporting rod are detachably connected with limiting rods through connecting pieces. The wellhead pipeline take-up and pay-off auxiliary device can be suitable for large-pipe-diameter desilting scenes such as canal boxes and pump stations, is simple in structure and convenient to install, can prevent a sewage suction pipe and a cable from being abraded by the wellhead wall in the hoisting process of a desilting robot, and can effectively prevent the pipeline from being damaged. And the sewage suction pipe, the floating ball and the cable can be separated and guided through the first guide wheel and the second guide wheel, and the situation that the floating ball and the sewage suction pipe are guided on the same guide wheel to generate jamming, and smooth hoisting of the desilting robot is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for dredging drainage pipelines, in particular to an auxiliary device for winding and unwinding wellhead pipelines. Background Art

[0002] With the gradual improvement of the urban drainage system construction in China, the dredging of the drainage system has become an important part of the urban drainage system field. The key points of the urban drainage system dredging work are key nodes such as inspection wells, grit chambers, channel boxes, and pumping stations that are prone to silt accumulation. In the past, when dredging operations were carried out at the above-mentioned key nodes of the drainage pipe network, dredging equipment such as mortar pumps, sludge suction trucks, or dredging robots were required. These equipment have sewage suction pipes and cables of different thicknesses. During the process of hoisting and lowering the dredging equipment into and out of the well, the sewage suction pipes and cables are prone to rubbing against the wellhead wall, and over time, it is easy to cause damage to the sewage suction pipes and cables.

[0003] To solve the above problems, a Chinese invention patent application published under the publication number CN117550431A discloses a drag reduction bracket for pipeline wellhead construction. The bracket includes two first support rods, a connection mechanism is arranged between the two first support rods for adjusting the distance between the two first support rods; a guide wheel is detachably arranged between the two first support rods for guiding the construction cable; a fixed seat is arranged on the first support rod, and an installation mechanism is arranged on the fixed seat for installing and fixing the guide wheel; a transmission mechanism is arranged in the fixed seat for driving the installation mechanism and the guide wheel to move. This bracket can, to a certain extent, avoid the well wall from wearing the cable, but it needs to install the drag reduction bracket at the wellhead through two first support rods, and its structure is only applicable to wellheads with protrusions. For other forms of wellheads, more complex second support rods are required to fix them to the wellhead. Dredging robots are mostly used in large-diameter dredging scenarios, such as channel boxes and pumping stations. In these scenarios, the existing drag reduction brackets are inconvenient to install. Moreover, since the cables of the dredging robot include power supply and communication cables, and the sewage suction pipe is a 100mm plastic pipe and contains water during operation. In order to prevent the wire pipe from sinking to the bottom and being crushed by the robot, a floating ball needs to be tied to the wire pipe to make it float on the water surface. During the hoisting process of the dredging robot for dredging operations, this causes the existing single-guide-wheel guide bracket to be prone to jamming during the hoisting process of the dredging robot for dredging operations and unable to be smoothly wound and unwound, increasing the labor intensity of the operators and affecting the efficiency of the robot hoisting operation. Summary of the Invention

[0004] The purpose of the utility model is to develop an auxiliary device for winding and unwinding wellhead pipelines that is convenient for the hoisting operation of dredging robots. The specific technical solutions are as follows:

[0005] The utility model provides an auxiliary device for winding and unwinding wellhead pipelines, which comprises a guide wheel set and support rods fixed at both ends of the guide wheel set. The guide wheel set comprises a guide wheel fixing rod, and a first guide wheel and a second guide wheel are sleeved on the outer periphery of the guide wheel fixing rod. The two ends of the support rod are detachably connected with limiting rods through connecting pieces.

[0006] Optionally, both ends of the guide wheel fixing rod are detachably and fixedly connected with the support rod through fixing pieces, and the first guide wheel and the second guide wheel are respectively sleeved on the guide wheel fixing rod through bearings.

[0007] Optionally, the connecting piece is a 0-shaped limiting ring, the lower end of the 0-shaped limiting ring is sleeved on both ends of the limiting rod, and the support rod and the limiting rod can slide up and down in the 0-shaped limiting ring.

[0008] Optionally, the limiting rod is of a circular tube structure, an outer sleeve circular tube is fixedly arranged in the middle of the limiting rod, and annular retaining pieces are arranged on both sides of the outer sleeve circular tube.

[0009] Optionally, the connecting piece is a lead screw, the support rod is provided with a lead screw through groove, the top end of the lead screw passes through the lead screw through groove and the lead screw is restricted in the lead screw through groove through a limiting nut, and the bottom end of the lead screw is fixedly connected with the limiting rod.

[0010] Optionally, the limiting rod is of a short rod structure separated left and right, and one end of the limiting rod is detachably connected with the bottom end of the lead screw through a limiting nut.

[0011] Optionally, the limiting rod is of an L-shaped structure, that is, the limiting rod comprises a horizontal tube and a vertical tube, the vertical tube comprises a lead screw channel, and the lead screw passes through the lead screw channel and a limiting nut is arranged at the bottom thereof.

[0012] Optionally, a protective tube is sleeved on the outer periphery of the lead screw, and the protective tube is arranged between the support rod and the limiting rod.

[0013] Optionally, 2-3 groups of lead screw through grooves are arranged on the support rod along the length direction.

[0014] Optionally, the end of the support rod is sleeved with a telescopic tube, and a positioning piece is arranged at the end of the telescopic tube.

[0015] Optionally, the support rod is of a square tube structure.

[0016] The beneficial effects of the utility model are:

[0017] The auxiliary device for winding and unwinding wellhead pipelines provided in this embodiment is applicable to large-diameter dredging scenarios, such as channel boxes, pumping stations, etc. It has a simple structure and is easy to install. In addition, this auxiliary device can not only prevent the sewage suction pipe and cable from being worn by the wellhead wall during the hoisting process of the dredging robot, but also guide and separate the sewage suction pipe and cable through the first guide wheel and the second guide wheel, preventing the cable and the sewage suction pipe from getting stuck when guiding on the same guide wheel, thus affecting the smooth hoisting of the dredging robot.

[0018] In the embodiment where the adjusting screw rod is used as the connecting piece, the limit nut at the top of the screw rod can enable the limit rod and the support rod to jointly clamp the ground layer of the wellhead, preventing the auxiliary device from moving during use. Description of the Drawings

[0019] Figure 1 Structural schematic diagram of the auxiliary device for winding and unwinding wellhead pipelines in an embodiment of the present utility model;

[0020] Figure 2 Exploded view of the parts of the auxiliary device for winding and unwinding wellhead pipelines in an embodiment of the present utility model;

[0021] Figure 3 Structural schematic diagram of the auxiliary device for winding and unwinding wellhead pipelines in another embodiment of the present utility model;

[0022] Figure 4 Exploded view of the parts of the auxiliary device for winding and unwinding wellhead pipelines in another embodiment of the present utility model;

[0023] Figure 5 Structural schematic diagram of the auxiliary device for winding and unwinding wellhead pipelines in still another embodiment of the present utility model;

[0024] Figure 6 Exploded view of the parts of the auxiliary device for winding and unwinding wellhead pipelines in still another embodiment of the present utility model;

[0025] Figure 7 Structural schematic diagram of the auxiliary device for winding and unwinding wellhead pipelines in another embodiment of the present utility model.

[0026] Explanation of the reference numerals in the drawings:

[0027] 01 Guide wheel group, 011 Guide wheel fixing rod, 012 First guide wheel, 013 Second guide wheel, 014 Fixed plate, 015 Bearing, 016 Connecting sleeve, 02 Support rod, 021 Telescopic tube, 022 Positioning piece, 023 Screw rod through slot, 024 Horizontal support rod, 04 Connecting piece, 04-1 0-shaped limit ring, 04-2 Screw rod, 043 Protective tube, 06 Limit rod, 061 Outer sleeve round tube, 062 Annular retaining piece, 063 Horizontal tube, 064 Vertical tube, 065 Screw rod channel, 066 Connecting ear, 07 Limit nut.

[0028] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0029] The following describes the implementation manners of the present utility model through specific specific examples in combination with the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0030] The embodiment of the present utility model provides an auxiliary device for winding and unwinding wellhead pipelines (hereinafter referred to as the auxiliary device), and the auxiliary device has the following structural features:

[0031] As Figures 1 to 7As shown in the figure, the auxiliary device includes a guide wheel group 01 and support rods 02 fixed to both ends of the guide wheel group 01. The guide wheel group 01 includes a guide wheel fixing rod 011. A first guide wheel 012 and a second guide wheel 013 are sleeved on the outer periphery of the guide wheel fixing rod 011. Both ends of the support rod 02 are detachably connected with a limiting rod 06 through a connecting piece 04. To reduce the rolling of the support rod during use, the support rod 02 is of a square tube structure. Both ends of the guide wheel fixing rod 011 are detachably and fixedly connected with the support rod 02 through fixing pieces 014 (specifically, it can be fixed by screws, clamps, etc.). The first guide wheel 012 and the second guide wheel 013 are respectively sleeved on the guide wheel fixing rod 011 through bearings 015. Specifically, the bearing 015 is fixedly connected with the outer baffles of the first guide wheel 012 and the second guide wheel 013 through a connecting sleeve 016 to prevent the two guide wheels from colliding during rotation. As one of the connection methods for the two ends of the support rod 02 to be detachably connected with the limiting rod 06 through the connecting piece 04, the connecting piece 04 is an O-shaped limiting ring 04-1. The lower end of the O-shaped limiting ring 04-1 is sleeved on both ends of the limiting rod 06, and both ends of the support rod 02 are sleeved on the upper end of the O-shaped limiting ring 04-1. The support rod 02 and the limiting rod 06 can slide up and down within the O-shaped limiting ring 04-1. During the installation and use process, the support rod connected to the guide wheel group is horizontally placed above the wellhead to be dredged. The support rod straddles the wellhead and is placed on the ground on both sides of the wellhead, and the guide wheels are located inside the wellhead. Then, two O-shaped limiting rings are sleeved on the inner section of the support rod inside the wellhead. The bottom end of the O-shaped limiting ring droops below the top wall of the wellhead. Then, the limiting rod is obliquely inserted into the inside of the wellhead and passes through the two O-shaped limiting rings in sequence. Finally, the limiting rod is placed on the inner ring at the bottom end of the O-shaped limiting ring. In this way, under the support of the O-shaped limiting ring, the limiting rod is kept below the top wall of the wellhead. During the process of hoisting the dredging robot up and down the well, the sewage suction pipe is placed on the first guide wheel, and the buoy and cable bound to the cable are placed on the second guide wheel. Under the pulling of manpower or a traction device, the sewage suction pipe, the buoy and the cable are pulled or lowered into the well together under the guiding and assisting action of the guide wheel group. During this process, if the support rod is dragged, it will be pulled by the limiting rod through the O-shaped limiting ring, preventing the auxiliary device from being dragged away. Therefore, this auxiliary device can be applied to large-diameter dredging scenarios, such as culvert boxes, pump stations, etc. Moreover, this auxiliary device has a simple structure and is easy to install. In addition, through this wellhead pipeline retracting and releasing auxiliary device, this auxiliary device can not only prevent the sewage suction pipe and the cable from being worn by the wellhead wall during the hoisting process of the dredging robot, but also guide and move the sewage suction pipe, the buoy and the cable separately through the first guide wheel and the second guide wheel, preventing the cable, the buoy and the sewage suction pipe from getting stuck when guiding and moving on the same guide wheel, which affects the smooth hoisting of the dredging robot.

[0032] Specifically, in one embodiment, the limiting rod 06 is of a circular tube structure. An outer sleeve circular tube 061 is fixedly arranged in the middle of the limiting rod 06, and annular retaining plates 062 are arranged on both sides of the outer sleeve circular tube 061. A guide wheel is formed by the outer sleeve circular tube and the annular retaining plates, which plays a guiding role for the sewage suction pipe or cable in special cases, and at the same time can reduce the shaking amplitude of the limiting rod within the 0-shaped limiting ring.

[0033] In another embodiment, the end of the support rod 02 is sleeved with a telescopic tube 021, and a positioning piece 022 is arranged at the end of the telescopic tube 021. By lengthening or shortening the telescopic tube, the overall length of the support rod can be changed, so as to adapt to wellheads of different diameters. And the positioning piece can prevent the telescopic tube from completely extending into the support rod, affecting the normal use of the auxiliary device.

[0034] As another connection method in which both ends of the support rod 02 are detachably connected to the limiting rod 06 through the connecting piece 04, in one embodiment, the connecting piece 04 is a lead screw 04-2. The support rod 02 is provided with a lead screw through groove 023. The top end of the lead screw 04-2 passes through the lead screw through groove 023 and the lead screw 04-2 is restricted within the lead screw through groove 023 by a limit nut 07. The bottom end of the lead screw 04-2 is fixedly connected to the limiting rod 06. In this embodiment, the limiting rod 06 is preferably a short rod structure separated left and right. One end of the limiting rod 06 can be detachably connected to the bottom end of the lead screw 04-2 through the limit nut 07. By adjusting the limit nut at the top end of the lead screw, the limiting rod and the support rod can jointly clamp the ground layer of the wellhead to prevent the auxiliary device from moving during use.

[0035] It should be noted that 2-3 groups of lead screw through grooves 023 are arranged along the length direction of the support rod 02, so as to select the lead screw through groove to fix the lead screw according to the diameter of the wellhead during use. It can be understood that the number of the lead screw through grooves is set according to the diameter of the wellhead, that is, the required span.

[0036] In another embodiment, one end of the limiting rod 06 can be detachably connected to the bottom end of the lead screw 04-2 through a connecting ear 066 and a limit nut 07. The limit nuts 07 are respectively arranged on the upper and lower sides of the connecting ear 066 and clamp the connecting ear 066. The limiting rod is fixed at the corresponding position of the lead screw through the limit nut to play a role in clamping the ground layer of the wellhead. A transverse support rod 024 is arranged at the end of the support rod 02 near the fixed piece. The transverse support rod 024 is perpendicular to the support rod 02 and the lead screw 04-2 respectively. The transverse support rod can increase the contact area between the support rod and the wellhead ground, and at the same time can prevent the support rod from turning over during use.

[0037] In yet another embodiment, the limiting rod 06 has an L-shaped structure, that is, the limiting rod 06 includes a horizontal pipe 063 and a vertical pipe 064. The vertical pipe includes a lead screw channel 065. The lead screw 04-2 passes through the lead screw channel 065 and a limiting nut 07 is arranged at its bottom. The L-shaped limiting rod can provide a greater clamping force, making it more convenient to use the auxiliary device.

[0038] Further, in yet another embodiment, a protective pipe 043 is sleeved on the outer periphery of the lead screw 04-2. The protective pipe 043 is arranged between the support rod 02 and the limiting rod 06. The protective pipe can not only protect the lead screw but also enhance the clamping force of the limiting rod.

[0039] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present utility model, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. An auxiliary device for winding and unwinding wellhead pipelines, comprising a guide wheel set and support rods fixed at both ends of the guide wheel set, characterized in that, The guide wheel set includes a guide wheel fixing rod, a first guide wheel and a second guide wheel are sleeved on the outer periphery of the guide wheel fixing rod, and limiting rods are detachably connected to both ends of the support rod through connecting pieces.

2. The auxiliary device for winding and unwinding wellhead pipelines according to claim 1, characterized in that, Both ends of the guide wheel fixing rod are detachably and fixedly connected to the support rod through fixing pieces, and the first guide wheel and the second guide wheel are respectively sleeved and connected to the guide wheel fixing rod through bearings.

3. The auxiliary device for winding and unwinding wellhead pipelines according to claim 2, wherein The connecting piece is a 0-shaped limiting ring, the lower end of the 0-shaped limiting ring is sleeved on both ends of the limiting rod, and the support rod and the limiting rod can slide up and down within the 0-shaped limiting ring.

4. The auxiliary device for winding and unwinding wellhead pipelines according to claim 3, characterized in that, The limiting rod is of a circular tube structure, an outer sleeve circular tube is fixedly arranged in the middle of the limiting rod, and annular retaining pieces are arranged on both sides of the outer sleeve circular tube.

5. The auxiliary device for winding and unwinding the wellhead pipeline according to claim 2, wherein The connecting piece is a lead screw, the support rod is provided with a lead screw through slot, the top end of the lead screw passes through the lead screw through slot and the lead screw is restricted within the lead screw through slot by a limiting nut, and the bottom end of the lead screw is fixedly connected to the limiting rod.

6. The auxiliary device for winding and unwinding wellhead pipelines according to claim 5, characterized in that, The limiting rod is a short rod structure separated left and right, and one end of the limiting rod can be detachably connected to the bottom end of the lead screw through a limiting nut.

7. The auxiliary device for winding and unwinding the wellhead pipeline according to claim 6, characterized in that, The limiting rod is of an L-shaped structure, that is, the limiting rod includes a horizontal tube and a vertical tube, the vertical tube includes a lead screw channel, and the lead screw passes through the lead screw channel and a limiting nut is arranged at its bottom.

8. The auxiliary device for winding and unwinding wellhead pipelines according to claim 7, wherein, A protective tube is sleeved on the outer periphery of the lead screw, and the protective tube is arranged between the support rod and the limiting rod.

9. The auxiliary device for retracting and extending the wellhead pipeline according to claim 5, wherein 2-3 groups of lead screw through slots are arranged on the support rod along the length direction.

10. The auxiliary device for winding and unwinding wellhead pipelines according to claim 1, wherein, The end of the support rod is sleeved and connected with a telescopic tube, and a positioning piece is arranged at the end of the telescopic tube.

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